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Sanken 2SB1257 — Logic ICs

Sanken 2SB1257

MPN2SB1257
Active

TRANS PNP DARL 60V 4A TO220F

$2.1Ref. price · indicative, final on quote
PackagingTO-220-3 Full Pack
RoHSRoHS Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

2SB1257 specifications
ParameterValue
MountingThrough Hole
FET typePNP - Darlington
Voltage - collector emitter breakdown60 V
Current - collector (Ic)4 A
Current - collector cutoff10µA (ICBO)
DC current gain (hFE) (Min) @ ic, vce2000 @ 3A, 4V
Power - max25 W
Frequency150MHz
Operating temperature150°C (TJ)
PackageBulk
CaseTO-220-3 Full Pack
Vce saturation (Max) @ ib, ic1.5V @ 6mA, 3A